Question

tìm x

a) ( 1230+x)- 3517=2119

b)2x+3x=230

Answer 1

a) ( 1230 + x ) - 3517 = 2119

=>  1230 + x = 2119 + 3517

=>   1230 + x = 5636

=> x = 5636 - 1230

=> x = 4406

b) 2x + 3x = 230

=> x ( 2 + 3 ) = 230

=> x . 5 = 230

=> x = 46

Answer 2

a, ( 1230 + x ) - 3517 = 2119

=> 1230 + x = 2119 + 3517

=> 1230 + x = 5636

=> x = 5636 - 1230

=> x = 4406

Answer 3

Tìm x, biết :

a) ( 1230 + x ) - 3517 = 2119

=> 1230 + x = 2119 + 3517

=> 1230 + x = 5636

=> x = 5636 - 1230

=> x = 4406.

Vậy x = 4406.

b) 2x + 3x = 230

=> ( 2 + 3 ).x = 230

=> 5x = 230

=> x = 230 : 5

=> x = 46.

Vậy x = 46.

Answer 4

b, 2x + 3x = 230

=> 5x = 230

=> x = 230 : 5 = 46